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The ichthyofauna and migration permeability of the River Otava
Hartvich, P. ; Lusk, Stanislav
The River Otava (a tributary of the River Vltava, Elbe drainage area) belonged in the past to the known rivers where Salmo salar were immigrating to spawn. On the Otava stream, in total 33 transverse steps of various types were built, which constitute mostly insurmountable barriers to fish migration.

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